إِذا وَعَدتَ فَبادِرْ بِالوَفاءِ وَلا

تَمطُلْ بِوَعدٍ فَلَيسَ المَطلُ مَقبولا

When you make a promise, fulfill it without delay

Do not procrastinate on a promise, for procrastination is not acceptable

فَأَحسَنُ الوعدِ ما قَد كُنتَ مُنجِزَهُ

وَأَقبحُ الوعدِ ما قَد كانَ مَمطولا

The best promise is the one you have already fulfilled

The worst promise is the one you have prolonged